Effect of age, physiological state and nutrition on fatty acid composition in depot fat and ruminal volatile fatty acids in sheep

Banskalieva, V.

doi:10.1016/s0921-4488(96)00898-x

Cited by 18 publications

(6 citation statements)

References 17 publications

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“…Conversely, the trans-10, cis-12 isomer of CLA, which in humans is considered to reduce body fat and to be the most effective in affecting blood lipids (Benjamin and Spener, 2009), was higher in younger Comisana than Leccese lambs. In agreement with Banskalieva (1997), an increase in unsaturation of fat depots was noted with increasing age at slaughter. This could be associated with the change in diet from maternal milk to the increased supplementation with solid feed (hay, for C18:3, and concentrate for C18:2) given to the lambs from 30 days after birth, which reduced the consumption of milk.…”

Section: Discussionsupporting

confidence: 83%

“…According to Banskalieva (1997), an increasing age at slaughter may cause slightly higher unsaturation of depot fat in sheep. Moreover, it is known that the fatty acid profile in lamb is affected by the slaughter age and breed (Beriain et al, 2000;Oriani et al, 2005;Marino et al, 2008).…”

Section: Discussionmentioning

confidence: 99%

“…The effects of breed (De Smet et al, 2004;Marino et al, 2008;Juárez et al, 2009) and age/weight at slaughter (Banskalieva, 1997;Cifuni et al, 2000;Rhee, 2000) on lamb lipid profile gave variable results.…”

Section: Introductionmentioning

confidence: 99%

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Fatty acid composition of light lamb meat from Leccese and Comisana dairy breeds as affected by slaughter age

D’Alessandro

Palazzo

Petrotos

et al. 2015

Small Ruminant Research

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Section: Discussionsupporting

confidence: 83%

Section: Discussionmentioning

confidence: 99%

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Fatty acid composition of light lamb meat from Leccese and Comisana dairy breeds as affected by slaughter age

D’Alessandro

Palazzo

Petrotos

et al. 2015

Small Ruminant Research

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“…Our findings are consistent with those of Ramsay et al (1992), who examined nine females with cubs and found that the mean adipocyte volume did not vary between belly and rump depots. Although site‐specific differences have been found in sheep Ovis aries (Banskalieva, 1996) and goats Capra hircus (Bas et al , 1987), studies of Svalbard reindeer Rangifer tarandus platyrhynchus (Pond et al , 1993), marmots Marmota flaviventris (Florant et al , 1990), mink Mustela vison (Layton, 1998) and seabirds (Iverson & Springer, 2002) all showed no differences in the FA composition of superficial adipose tissue sampled across sites on the body. Among marine mammals, blubber FA composition also remains consistent across sites on the main part of the body in harp and grey seals (Beck et al , 1993; Cooper, 2005; S. Tucker & S. Iverson, pers.…”

Section: Discussionmentioning

confidence: 99%

Seasonal, sexual and anatomical variability in the adipose tissue of polar bears (Ursus maritimus)

Thiemann

Iverson

Stirling³

2006

Journal of Zoology

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We collected 245 adipose tissue biopsies from adult polar bears Ursus maritimus in north-eastern Manitoba during the course of long-term population studies between fall 2001 and spring 2004. In summer, the sea ice of Hudson Bay melts completely and the entire polar bear population is forced to fast on land for c. 4 months. During this period, the adipose tissue of females contained significantly more lipid than that of males, consistent with preparation for pregnancy and lactation. The adipose tissue of females with cubs contained less lipid than that of solitary females, likely reflecting greater mobilization of lipid during lactation. Although most of the population returns to the sea ice to hunt after freeze-up in mid-November, pregnant females enter maternity dens where they continue to fast for an additional 4 months. As a result, the adipose tissue of females emerging from dens at the end of this 8-month 'reproductive fast' contained significantly less lipid than females in the fall. There was also evidence of a decline in the adipose tissue lipid content of females emerging from dens over the course of the study. Although this trend was based on limited sample sizes, it suggests that the overall condition of new mothers may be declining. Fat biopsies collected from 20 adult polar bears during a mark-recapture survey on the winter sea ice of south-eastern Beaufort Sea showed that the fatty acid (FA) composition of the superficial adipose layer was largely uniform with depth; however, lipid content significantly increased from skin to muscle. Finally, adipose tissue collected from the belly, rump and baculum depots of bears killed by native subsistence hunters showed no site-specific differences in either FA composition or lipid content. These data suggest that a single sample from any large superficial depot will accurately reflect a polar bear's total superficial adipose store. We suggest that lipid content of adipose tissue may provide valuable information on changes in polar bear condition in response to changes in arctic climate and prey distribution.

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“…This applies to ruminant species, as well as to pork and chicken [ 2 ]. The composition of FAs in fat deposits of sheep has received little research interest, compared to milk and other meat animals [ 3 , 4 ]. The characteristics of the food consumed play an essential role in maintaining health and preventing human disease.…”

Section: Introductionmentioning

confidence: 99%

Effects of Roughage Quality and Particle Size on Rumen Parameters and Fatty Acid Profiles of Longissimus Dorsi Fat of Lambs Fed Complete Feed

Matar

Abdelrahman

Alhidary

et al. 2020

Animals

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The fatty acid composition for the longissimus dorsi (LD) fat of carcass sheep is a crucial factor impacting meat quality. We performed a 90-day feeding trial of 25 Naemi lambs to investigate the effects of roughage sources (alfalfa or wheat straw) of two sizes (regular and 1 cm chopped) when fed with pelleted total mixed ration (TMR) on the growth performance, fermentation patterns, and fatty acid (FA) composition of longissimus dorsi (LD) fat. Lambs were randomly assigned to individual pens with five treatment diets, as follows: C, control group with TMR; T1, TMR and regular alfalfa hay; T2, TMR and alfalfa hay chopped to 1 cm; T3, TMR and regular wheat straw; and T4, TMR and wheat straw chopped to 1 cm. Four lambs were randomly selected from each treatment (20 total) and sacrificed. LD fat of the carcass was extracted and analyzed for FA using a gas chromatography-mass spectrometry. Significantly increased feed intake was found in T1 and T2. The FA composition of LD fat in T2 had higher unsaturated fatty acid (UFA), omega-6 (n6), and omega-3 (n3) FA content. Conjugated linoleic acid (CLA) and α-linoleic acid were highest in lambs fed T1 and T2. Feeding different types of roughage, especially alfalfa hay, either regular or chopped, with total pelleted mixed ration is crucial to improving feed intake and body weight gain, as it positively enhances the rumen microbial fermentation process by controlling rumen pH. The FA profiles of meat from lambs fed TMR with regular or 1 cm particle size alfalfa hay (T1 and T2) are recommended for human consumption as a source of healthy FAs.

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Effect of age, physiological state and nutrition on fatty acid composition in depot fat and ruminal volatile fatty acids in sheep

Cited by 18 publications

References 17 publications

Fatty acid composition of light lamb meat from Leccese and Comisana dairy breeds as affected by slaughter age

Fatty acid composition of light lamb meat from Leccese and Comisana dairy breeds as affected by slaughter age

Seasonal, sexual and anatomical variability in the adipose tissue of polar bears (Ursus maritimus)

Effects of Roughage Quality and Particle Size on Rumen Parameters and Fatty Acid Profiles of Longissimus Dorsi Fat of Lambs Fed Complete Feed

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